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Topic: Caliper rebuild torque specs

in Forum: C3 Handling Components


Caliper rebuild torque specs

Posted: 10/2/13 2:28pm Message 1 of 11
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Long Valley, NJ - USA
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Vette(s): 1972 454 Coupe, 4 speed, Targa Blue with blue interior, luggage rack 2019 Grand Sport Coupe, M7, Ceramic Matrix Gray with gray interior
For the life of me I can't locate the post from the member whose brakes failed because the caliper halves were not torqued tight enough. I'm sure someone posted the proper torque spec  for this on that thread, (Joel?) as it is nowhere to be found in the AIM or Shop Manual.  I'm in the middle of the rebuild and need the spec.  Anyone?  Making progress on my rear end refurbish (the car's not mine!).  Thanks.

Mario




Mario

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Re: Caliper rebuild torque specs

Posted: 10/2/13 7:22pm Message 2 of 11
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Duncanville, TX - USA
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Vette(s): #1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas
130 ft. lbs on the bolts that hold the two halves of the calipers together. Be sure that the o-rings do not fall out of place, too. Thumbs Up

   
 



Joel Adams
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Re: Caliper rebuild torque specs

Posted: 10/3/13 8:17am Message 3 of 11
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Long Valley, NJ - USA
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Vette(s): 1972 454 Coupe, 4 speed, Targa Blue with blue interior, luggage rack 2019 Grand Sport Coupe, M7, Ceramic Matrix Gray with gray interior
Thanks Joel!


Mario

Re: Caliper rebuild torque specs

Posted: 10/3/13 8:40am Message 4 of 11
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Long Valley, NJ - USA
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Vette(s): 1972 454 Coupe, 4 speed, Targa Blue with blue interior, luggage rack 2019 Grand Sport Coupe, M7, Ceramic Matrix Gray with gray interior
PS  I noticed it says dip the bolt in brake fluid, I used anti seize on the threads of the caliper half bolts and even on the bleeder screws - did I screw up?


Mario

Re: Caliper rebuild torque specs

Posted: 10/3/13 9:10am Message 5 of 11
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Manteca, CA - USA
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It was I that learned the hard way. You can't go wrong using thread locking compound on the caliper halves, at least I remember how hard it was to get mine apart, but better be sure to use a box wrench to open those bleeders for the first time.


Re: Caliper rebuild torque specs

Posted: 10/3/13 10:04am Message 6 of 11
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Long Valley, NJ - USA
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Vette(s): 1972 454 Coupe, 4 speed, Targa Blue with blue interior, luggage rack 2019 Grand Sport Coupe, M7, Ceramic Matrix Gray with gray interior
Aaah yes, but I couldn't find the thread, thanks Jimmy!


Mario

Re: Caliper rebuild torque specs

Posted: 10/3/13 10:17am Message 7 of 11
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Duncanville, TX - USA
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persico said: PS  I noticed it says dip the bolt in brake fluid, I used anti seize on the threads of the caliper half bolts and even on the bleeder screws - did I screw up?

Naw..yer gud. They just want you to use a lubricant so you can get a accurate torque measurement. In this case, brake fluid as a lubricant is best, because you don't want any other oils possibly mixing with brake fluid....nor do you want the bolts to loosen because of a lubricant. Anti-seize is fine....thread locker might be overkill, but will work, too....and will be a major pita to disassemble next time!!  Thumbs Up



Joel Adams
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Re: Caliper rebuild torque specs

Posted: 10/3/13 10:36am Message 8 of 11
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Long Valley, NJ - USA
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Vette(s): 1972 454 Coupe, 4 speed, Targa Blue with blue interior, luggage rack 2019 Grand Sport Coupe, M7, Ceramic Matrix Gray with gray interior
whew, thanks!  I was worried about the anti seize contaminating the brake fluid so i applied it carefully!


Mario

Re: Caliper rebuild torque specs

Posted: 2/27/23 5:36pm Message 9 of 11
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Keauu, HA - USA
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I posted on that a little while back so I may be the one you're looking for. The torque value for the bolts that join the calliper halves is 130 ft. pnds. 




Re: Caliper rebuild torque specs

Posted: 2/27/23 5:40pm Message 10 of 11
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Keauu, HA - USA
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OOPs, I'm replying to an old thread and didn't read all the replys. 




in Forum: C3 Handling Components


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